Data Quality Report for Order ID: 186925
User ID: masons1    Date completed: 2017-07-27
All DQRs
DQR ID Subject Affected Data Streams Data Quality Metric
D150417.10 TMP/MWACR/M1 - Possible antenna offset from zenith tmpmwacrM1.a1 Suspect
D140506.3 TMP/MWACR/M1 - Snow Buildup tmpmwacrM1.a1 Suspect
D140404.2 TMP/MWACR/M1 - Instrument failure tmpmwacrauxM1.a0 Suspect
D140506.2 TMP/KAZR/M1 - Snow Buildup tmpkazrhiM1.a1 Suspect
 
DQR ID: D150417.10    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-01-12 00:00:00 2014-09-13 23:59:59 Suspect
Subject: TMP/MWACR/M1 - Possible antenna offset from zenith
Affected Datastreams: tmpmwacrM1.a1
Description A preliminary analysis of vertically-pointing Doppler velocity from all four radars at the site (KAZR, MWACR, KaSACR and XSACR) suggests that MWACR may have a systematic velocity bias. The bias appears to depend on height and wind profile, suggesting it could be caused by mispointing of the MWACR. A more detailed study of the radars plus sounding information indicates the MWACR is mispointed by approximately 1 degree from zenith, into azimuth direction of 75 degrees from North.
Measurements
  • mean_doppler_velocity (Mean Doppler velocity)
  • reflectivity (Equivalent reflectivity factor)
  • spectral_width (Spectral width)
 
DQR ID: D140506.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-03-19 00:00:00 2014-03-20 23:59:00 Suspect
2014-02-02 00:00:00 2014-02-03 23:59:00 Suspect
Subject: TMP/MWACR/M1 - Snow Buildup
Affected Datastreams: tmpmwacrM1.a1
Description There was potentially a build up of snow on the instrument causing large differences in the reflectivity as compared with the KAZR.
Measurements
  • mean_doppler_velocity (Mean Doppler velocity)
  • reflectivity (Equivalent reflectivity factor)
  • spectral_width (Spectral width)
 
DQR ID: D140404.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-03-12 12:00:00 2014-03-25 15:59:00 Suspect
Subject: TMP/MWACR/M1 - Instrument failure
Affected Datastreams: tmpmwacrauxM1.a0
Description During this period, there were gaps in the data due to restarts and subsequent computer hangups. During this period, the radar clutter filter was not turned on causing a noisy signal when there were no significant radar returns.
Measurements
  • noise_figure (Receiver noise figure estimated from noise source measurements using Y-factor method.)
  • reflectivity (Equivalent reflectivity factor)
  • mean_doppler_velocity (Mean Doppler velocity)
  • noise_power_sky (Total sky noise power prior to spectrum computation)
  • gain (Receiver gain estimated from noise source measurements using Y-factor method)
  • spectral_width (Spectral width)
 
DQR ID: D140506.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-03-19 00:00:00 2014-03-20 23:59:00 Suspect
2014-02-02 00:00:00 2014-02-03 23:59:00 Suspect
Subject: TMP/KAZR/M1 - Snow Buildup
Affected Datastreams: tmpkazrhiM1.a1
Description There was potentially a build up of snow on the instrument causing large differences in the reflectivity as compared with the MWACR.
Measurements
  • mean_doppler_velocity (Mean Doppler velocity)
  • reflectivity (Equivalent reflectivity factor)
  • signal_to_noise_ratio_copol (Signal to noise ratio, copolar)
  • sky_noise_copol (Sky noise, copolar)
  • spectral_width_copol (Spectral width, copolar)
  • mean_doppler_velocity_copol (Mean doppler velocity, copolar)
  • reflectivity_copol (Reflectivity, copolar)
  • spectral_width (Spectral width)
  • signal_to_noise_ratio (Signal to noise ratio)